Okay 2day i put in my MD 5/16" spacer, and i must say it is a great mod!!!
The only problem i am having, is that when i took off the top piece of the plenum, i noticed alot of wear on the lower plenum area, almost like it was rubbing on something else, there were six rly bad wear marks on the lower plenum, just wanted to see if i was the only one with this problem, if it even is a problem.
thanks
-Tom

 

the six bad wear marks are possibly the 6 bolts??

 

there are wear marks on each or the 6 bumps on the lower plenum....

 

Just make sure all the bolts are torqued to the right specs and you should have a problem...

Your air manifold is one of the strongest peice of metal on your car except your block so it should be moving to easily....

 

hmm...okay well i dont recall any wear marks on mine.

 

i wish i took pics, i just wanted to get the spacer on...

 

Might it have been from when you had all the bolts loose and you were lifting it up and the 6 inside bolts were rubbing against the lower manifold? They might have left a few scratches...

 

i wouldnt freak out about this the inside shouldnt be moving anyways. Just torque it and you should be fine.

 

nope, these were some serious wear marks, and i havent messed with the plenum b4 so i know i didnt cause it...

 

did you buy this car used or new?

 

new, its 1yr old, with 21k miles.

 

dont know but if you take it to the dealer they are going to question why you opend up your intake manifold.

 

did you use a torque wrench? If not, do so. You may be surprised.

otherwise, read over the directions again, and double check to make sure you haven't missed anything.

If nothing you do helps, take pics and send them to motordyne and see what they say (hope you bought it from them, so they'll actually help you).

 

Hummm.....do you mean like crappy factory polishing / grinding on the intake runner throats?????

 

MY guess is that's all it could be since there is nothing moving in there to match scratches or wear marks.